Fist weapon

Fist weapons are one-handed blunt weapons which are either gripped in a fist, such as brass knuckles, or are worn as a glove, such as claws. Fist weapons are treated by game mechanics as melee "unarmed". This means that, when disarmed, they still deal their listed damage even though class-specific skills that deal additional weapon damage or activate certain abilities are not available. Exceptions to this are certain defensive abilities, such as the Hunter's [Wing Clip] which is still operable with a Fist weapon while disarmed or dismantled.

Fist weapons can be either main-hand or off-hand (right/left). Players must have the Dual Wield skill in order to wield two fist weapons.

There aren't a lot of fist weapons in the game, so maintaining a string of fist weapons while leveling is difficult if not impossible. But if you know where to look and are willing to put some extra time into running dungeons, you should be able to find some good upgrades.